电网谐波测量中的数字抗混叠滤波方法

The Method of Digital Anti-mix Filter for Harmonic Measurement in Electric-network

介绍一种基于数字滤波技术的数字抗混叠处理方法,它可以较好地解决在数字式电网谐皮分析系统中由于模拟抗混叠滤皮器的非平直通带特性所产生的谐波测量误差问题,简化模拟抗混叠滤波器的设计与实现。

This paper presents a method of digital anti-mix Process with digital filter for harmonic measurement in electric-network, this method can overcome the measurement error that is made by anti-mix analog filter with non-linearity in the pass-band; and the design and operation of anti-mix analog filter can be simplified. This method is operated by software, so it has simply operation and it's anti-mix filter is very effective. This technics can be also used in other digitize signal measurement system.